For CBC mode you should call

 Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");

NoPadding options means that apply no padding. This is useful if

• Your data is always multiple of the AES block size, i.e. 128k
• You will do your padding, probably developing a new one.

If you are talking about ECB mode, that doesn’t need IV and don’t use ECB. It is insecure. If you really need then call it without an IV.

Cipher cipher = Cipher.getInstance("AES/ECB/PKCS5Padding");
cipher.init(Cipher.DECRYPT_MODE, secretKeySpec);

If your Android target matches prefer GCM mode instead of ECB or CBC. That is a modern encryption mode; Authenticated Encryption (with Associated Data). You will get Confidentiality, authentication, and integrity.

I know a lot of these questions were asked. but in my case the error is:

java.security.InvalidAlgorithmParameterException: expected IV length of 0

I’m trying AES 128 CBC mode

code:

byte[] iv = new byte[]{(byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00
                            , (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00};

        IvParameterSpec ivParameterSpec = new IvParameterSpec(iv);
        SecretKeySpec secretKeySpec = new SecretKeySpec(key, "AES");
        Cipher cipher = Cipher.getInstance("AES/ECB/NoPadding");
        cipher.init(Cipher.DECRYPT_MODE, secretKeySpec, ivParameterSpec);
        byte[] decryptedBytes = cipher.doFinal(encrypted);
        return decryptedBytes;

If I change init vector to something like this as error suggested:

byte[] iv = new byte[]{};

I’m receiving error :

java.security.InvalidAlgorithmParameterException: expected IV length of 16